"Driving without due care and attention" is a catch-all violation that covers everything. There is no need and it is a waste of legislative resources to define all these specific things you can't do while driving.
Frankly I don't even see the point of explicitly banning drunk driving. All of the other laws covering reckless driving should more than cover any drunk driving scenerio.
I guess pointing out that laws already cover things is not as politically savy as passing new laws.
I guess pointing out that laws already cover things is not as politically savy as passing new laws.